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Psyllid Resistance In The Leucaena Genus, B F. Mullen, H M. Shelton, F Gabunada, W W. Stur

IGC Proceedings (1977-2023)

Leucaena species varied from highly susceptible to highly resistant in their response to the psyllid insect (Heteropsylla cubana) at 2 sites, a high psyllid environment at Brisbane, Australia and a moderate psyllid environment at Los Baños, Philippines. L. leucocephala was the most susceptible species. There was considerable intraspecific variation in psyllid resistance within L. collinsii, L. diversifolia and L. pallida. Plant reponse to psyllid challenge between environments was highly correlated but not linear. The higher psyllid challenge environment at Brisbane permitted greater discrimination between species and fewer Leucaena species were ranked as psyllid resistant.

Fodder Production Of Multipurpose Trees In A Maize Farming System Of Subhumid Southern Africa, B H. Dzowela, L Hove, P L. Mafongoya

IGC Proceedings (1977-2023)

Ways to integrate fodder production into maize production systems under Southern Africa’s subhumid conditions have been studied. One way involves the planting of tree and grass fodder hedges along soil conservation contour-bunds in maize fields. Management factors that influence the productivity of maize and fodder components in the system are fodder spp., side-pruning and deferment of wet season cutting. The other option involves interplanting tree fodders with maize through the use of a coppicing tree such as Acacia angustissima. Practical applications of these methods in mixed crop-livestock production systems are discussed.

Differences In Chemical Composition Among Provenances Of Browse Species In A Subhumid Environment: Relation To Use As Supplements, B H. Dzowela, L Hove, P L. Mafongoya

IGC Proceedings (1977-2023)

Studies were initiated in a subhumid Southern African environment to assess the chemical composition and nutritive value of Acacia angustissima (Mill.) Kuntze, Calliandra calothyrsus Meiss. and Leucaena species. The objective was to determine variability in crude protein (CP) concentration, acid detergent fibre (ADF), neutral detergent fibre (NDF), and soluble and insoluble proanthocyanidins from fodder samples of species, subspecies and provenances. A wide range was found in these parameters. The implications of these chemical composition factors, especially proanthocyanidins, on the use of these browse fodders in livestock feeding systems are discussed.

Tree Forages As Nitrogen Source For Ruminants In Sahelian Agro-Silvipastoral Systems, S T. Fall, B M. Doreau

IGC Proceedings (1977-2023)

Tree forages contribute up to 80% DM and 100% nitrogen content in the ruminants diet in the Sahel during the dry season. However, crude protein (CP) concentration in browse within a wide range and variation factors remain to be elucidated for better integration of browses in ruminants feeding systems. Variation factors of CP content and in vivo digestibility of four Sahelian browse species were investigated to appreciate the potential as nitrogen sources in Sahelian ruminant feeding systems. Seasonal variations in nitrogen content were evaluated in different plants part of A. raddiana, B. rufescens, B. aegyptiaca and G. senegalensis harvested in …

Introduction Of Multipurpose Tree Species For Improving The Productivity Of Grasslands In The Tropics, N G. Hegde, C Sall, T Nolan, J Connolly

IGC Proceedings (1977-2023)

To improve the productivity of the Sahelian pastures, 10 different tree species were introduced and cattle, sheep and goats were allowed to graze. After a year of establishment, survival rate of different species ranged from 6% to 68%. Acacia senegal, Acacia seyal, Acacia nilotica, Combretum aculeata and Prosopis cineraria performed well and the impact of browsing by goats was severe.

Evaluation Of Animal Productivity In A Sustainable Grazing System Based On The Use Of Trees In Association With Pastures, J M. Iglesias Gomez

IGC Proceedings (1977-2023)

Young bulls of different breeds ( Zebu, Holstein and F-1 strain Holstein Zebu) were grazing together on a meadow composed of Guinea grass (Panicum maximum), Brachiaria (Brachiaria decumbens) and a mixture of natural pastures, all in association with Leucaena (Leucaena leucocephala) sown at a density of 555 plants per ha in order to evaluate the potential of that system for beef production. A completely randomized design was used. The meadow was rotationally grazed at stocking rate of 3.6 animal per ha. During the 18 months of fattening the best results were obtained with the Zebu type. …

Changes In Understorey Pasture Composition In Agroforestry Regimes In New Zealand, M F. Hawke, A G. Gillingham

IGC Proceedings (1977-2023)

Long term Agroforestry trials were established in the North and South Islands of New Zealand between 1971-76. They compared a range of final tree stockings of Pinus radiata planted into pasture with open pasture control plots and were measured for tree growth parameters and agricultural production. This paper presents the results of pasture species changes over the period of tree age 10-22 years. Pasture species composition under Pinus radiata changed with time, dependent primarily on the rate of canopy closure. Changes occurred relatively rapidly in high tree stocked areas of 400 stems per hectare (sph) in the North Island trials …

Forestry, A Valuable Crop For The Pastoral Farmer, N M. Shadbolt

IGC Proceedings (1977-2023)

The integration of forestry into a pastoral system (sheep & beef cattle) will be discussed with respect to the economic sustainability of the system. The cash flow implications for a case study farm of forest development, and methods used through forestry right agreements to facilitate these by reducing risk, will be developed.

The Effects Of Tree Density On Pasture Production Under Acacia Melanoxylon, B S. Thorrold, I L. Power, M B. Dodd

IGC Proceedings (1977-2023)

Silvi-pastoral systems could contribute to greater total productivity and more sustainable land management of grazed pastures in New Zealand. Despite this potential, little is known of the interactions of tree species and environment on pasture growth. In this paper we report the effects of tree density on pasture yield in an Acacia melanoxylon silvi-pastoral system. The results show decreasing pasture yield with increasing tree density, although the extent of the reduction is less than would be expected under Pinus radiata. Results suggest that shade is the dominant factor causing yield decline in this study, while reduced N availability is …

Long-Term Impact Of Leucaena-Based Grazing Systems On Soil Acidity, A D. Noble, R J. Jones

IGC Proceedings (1977-2023)

Soil acidification and land degradation issues are assuming increasing importance in Australia and challenging the concept of sustainablity of current land management systems. In this study the impact of a 22 year old Leucaena leucocephala / Urochloa mosambicensis (Leucaena) pasture production system on soil acidification and selected soil chemical properties was compared to an adjacent Urochloa mosambicensis (Sabi) area. Significant acidification and cation depletion was observed to 70 cm under the Leucaena when compared to the Sabi system. The net acidification rate for the Leucaena system was estimated to be 2.73 kmol H+ ha-1 yr-1 of which 0.17 kmol …

Farmers' Screening Of Indigenous Fodder Trees And Shrubs In Kenya, R L. Roothaert, H K. Arimi, E N. Kamau

IGC Proceedings (1977-2023)

The lack of fodder quantity and quality is a constraint for small scale livestock production systems in central Kenya which are intensive or are rapidly becoming so. This study examined farmers’ knowledge about indigenous fodder trees and shrubs (IFTS) which are fed to livestock. The study consisted of a formal survey in three agroecological zones with mean annual rainfall varying from 750 to 1400 mm. Farmers rated IFTS for different qualities, which were analysed by Chi square. Differences of ratings among species for these qualities were significant (p<0.05). The most promising species for the sub-humid zone, in terms of what farmers want to plant and in terms of preliminary nutritive analysis, were: Tithonia diversifolia, Commiphora zimmermanii, Ficus spp. and Trema orientalis. The species …

Design To Data For Mutants Of Β-Glucosidase B From Paenibacillus Polymyxa: E26k, I170y, And V398n, Carter Ahlstedt, Annika Bennett, Daniel Kaluka

Lux et Fides: A Journal for Undergraduate Christian Scholars

Protein modeling aids in developing novel protein configurations that are critical in, for example, the pharmaceutical and environmental industries. However, the predictive capabilities of the protein modeling algorithms are limited due to a lack of experimental data on structure and function. To bridge this gap, Seigel Lab at UC Davis developed the Design to Data (D2D) program to catalog thermal stability and catalytic efficiency data sets on β-glucosidase B (BglB) variants. Over 300 BglB variants have been characterized. However, there are over 8400 possible BglB single-point mutations. We utilized Foldit software to design BglB mutants E26K, I170Y, and V398N. The …

Whole Genome Sequencing Of The Whipple Azalea Garden, Afia Asamoah, Elizabeth Toth, Amy Vasudevan, Sarah Justice, Elizabeth D. Hasenmyer

Lux et Fides: A Journal for Undergraduate Christian Scholars

Taylor University houses a large collection of North American azaleas. Deciduous azalea species, like those found on campus, are vastly understudied. This project aims to provide publicly available genomic data which will be used to study the genetic basis behind their physical characteristics and their relatedness to other species.

2024-03-01, Board Of Regents, Murray State University

Board of Regents Meeting Minutes

No abstract provided.

Hearing Before The United States Senate Committee On The Judiciary The Continued Assault On Reproductive Freedoms In A Post-Dobbs America, O. Carter Snead

Congressional Testimony

O. Carter Snead, Charles E. Rice Professor of Law and director of the de Nicola Center for Ethics and Culture at the University of Notre Dame, offered expert testimony on March 20, 2024 before the U.S. Senate Committee on the Judiciary, "The Continued Assault on Reproductive Freedoms in a Post-Dobbs America," on the current legal landscape following the landmark Supreme Court decision in Dobbs v. Jackson Women’s Health Organization.

Originally posted U.S. Senate Committee on the Judiciary.

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Spartan Daily, March 20, 2024, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily, 2024

Volume 162, Issue 24

From “The Coca-Cola Douche” To Embracing Pleasure: Media Representations And Irish Womens’ Lived Experiences Learning About Sexuality, Jaelynn Sutter, Taylon Mendenhall

SACAD: Scholarly Activities

Media, for better or worse, is a powerful social influence that runs much deeper than the daily news. Our qualitative survey-based study focuses on how Irish women learn about and understand sexuality; our findings demonstrate the significant role media plays in this development. Specifically, our survey indicates the influence of the media in Irish women's lives as it leads to societal expectations. More than half of our participants cited media as an integral tool in learning about sexuality, including magazines, television, movies, novels, and the Internet. For some, media use in understanding their own identities opened the door to empowerment …

Miss Gardner-Webb Pageant On March 24 To Feature Nine Contestants, Office Of University Communications, Isabella Brown

Gardner-Webb NewsCenter Archive

The Miss Gardner-Webb Pageant will be held on Sunday, March 24, at 3 p.m. in Dover Theatre. Nine contestants have practiced enthusiastically for an opportunity to shine bright and show what makes them unique. From beautiful dresses to bold talents, these contestants plan to give the judges their best.

Expression Of Als-Pfn1 Impairs Vesicular Degradation In Ipsc-Derived Microglia., Salome Funes, Jonathan Jung, Del Hayden Gadd, Michelle Mosqueda, Jianjun Zhong, Shankaracharya, Matthew Unger, Karly Stallworth, Debra Cameron, Melissa S Rotunno, Pepper Dawes, Megan Fowler-Magaw, Pamela J Keagle, Justin A Mcdonough, Sivakumar Boopathy, Miguel Sena-Esteves, Jeffrey A Nickerson, Cathleen Lutz, William C Skarnes, Elaine T Lim, Dorothy P Schafer, Francesca Massi, John E Landers, Daryl A Bosco

Faculty Research 2024

Microglia play a pivotal role in neurodegenerative disease pathogenesis, but the mechanisms underlying microglia dysfunction and toxicity remain to be elucidated. To investigate the effect of neurodegenerative disease-linked genes on the intrinsic properties of microglia, we studied microglia-like cells derived from human induced pluripotent stem cells (iPSCs), termed iMGs, harboring mutations in profilin-1 (PFN1) that are causative for amyotrophic lateral sclerosis (ALS). ALS-PFN1 iMGs exhibited evidence of lipid dysmetabolism, autophagy dysregulation and deficient phagocytosis, a canonical microglia function. Mutant PFN1 also displayed enhanced binding affinity for PI3P, a critical signaling molecule involved in autophagic and endocytic processing. Our cumulative data …

Sanitation In Urban Areas May Limit The Spread Of Antimicrobial Resistance Via Flies, Drew Capone, Oliver Cumming, Abeoseh Flemister, Victor Ilevbare, Seth R. Irish, Ishi Keenum, Jackie Knee, Rassul Nala, Joe Brown

Michigan Tech Publications

Synanthropic filth flies are common where sanitation is poor and fecal wastes are accessible to them. These flies have been proposed as mechanical vectors for the localized transport of fecal microbes including antimicrobial resistant (AMR) organisms and associated antimicrobial resistance genes (ARGs), increasing exposure risks. We evaluated whether an onsite sanitation intervention in Maputo, Mozambique reduced the concentration of enteric bacteria and the frequency of detection of ARGs carried by flies collected in household compounds of low-income neighborhoods. Additionally, we assessed the phenotypic resistance profile of Enterobacteriaceae isolates recovered from flies during the pre-intervention phase. After fly enumeration at study …

Bayesian Hierarchical Modelling Of Size Spectra, Jeff S. Wesner, Justin P.F. Pomeranz, James R. Junker, Vojsava Gjoni

Michigan Tech Publications

A fundamental pattern in ecology is that smaller organisms are more abundant than larger organisms. This pattern is known as the individual size distribution (ISD), which is the frequency distribution of all individual body sizes in an ecosystem. The ISD is described by a power law and a major goal of size spectra analyses is to estimate the exponent of the power law, λ. However, while numerous methods have been developed to do this, they have focused almost exclusively on estimating λ from single samples. Here, we develop an extension of the truncated Pareto distribution within the probabilistic modelling language …

Supporting Neurodivergent Students With Dyslexia, Dyscalculia, Dysgraphia, And Dyspraxia, Liz Norell

Events

In this follow-up to last fall’s workshop on supporting neurodivergent students, we will turn our attention to four additional neurodivergent types: dyslexia (challenges interpreting text), dyscalculia (challenges working with numbers), dysgraphia (challenges writing text), and dyspraxia (challenges with physical coordination). We will describe each of these neurodivergent types, discuss what each might look like in the classroom, and explore potential accommodations and strategies to promote student success. Lunch from Grit. (Wednesday, March 20, 2024, 12:00-1:00 p.m., Johnson Commons East Ballroom)

The Lumberjack, March 20, 2024

Cal Poly Humboldt's Student Newspaper

The student newspaper of Humboldt State University.

Potential Metabolite Biomarkers Of Multiple Sclerosis From Multiple Biofluids, Fatema Bhinderwala, Heidi E. Roth, Mary Filipi, Samantha Jack, Robert Powers

Robert Powers Publications

Multiple sclerosis (MS) is a chronic and progressive neurological disorder without a cure, but early intervention can slow disease progression and improve the quality of life for MS patients. Obtaining an accurate diagnosis for MS is an arduous and error-prone task that requires a combination of a detailed medical history, a comprehensive neurological exam, clinical tests such as magnetic resonance imaging, and the exclusion of other possible diseases. A simple and definitive biofluid test for MS does not exist but is highly desirable. To address this need, we have employed NMR-based metabolomics to identify potentially unique metabolite biomarkers of MS …

2024 Scholarsip Program, Harding University

ScholarSip

This program details the rich body of work published in 2023 by the faculty of Harding University.

Building Community Support: A Multi-Scalar Archaeological Analysis Of Sewage Infrastructure In Central Illinois, Anastasia Leigh Ervin

Theses and Dissertations

In the 1920s and 1930s in Central Illinois, urban areas implemented sewage infrastructure consisting of underground sewers and sanitation plants. These sanitary districts soon became an essential service provided within the community and the established infrastructure has undergone expansion and technological updates in the decades since. I use methods and concepts of landscape archaeology in combination with 1940 Census socio-economic demographics, GIS viewshed and smellshed (buffer) analysis, and visual spatial analysis to examine the case studies of three sanitary districts in Central Illinois: Bloomington-Normal, Urbana-Champaign, and Sangamon County to evaluate how these infrastructures shaped their landscapes, or sewagescapes. Sewagescapes have …

Biological Control Of Three Major Cucumber And Pepper Pests: Whiteflies, Thrips, And Spider Mites, In High Plastic Tunnels Using Two Local Phytoseiid Mites, Yusuf Abou Jawdah, Nour Ezzedine, Aya Fardoun, Samer Kharroubi, Hana Sobh, Hagop S. Atamian, Margaret S. Skinner, Bruce Parker

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

To enhance food security, food safety, and environmental health, a bio-based integrated pest management (BIPM) strategy was evaluated at two coastal locations in Lebanon as an alternative to toxic pesticide sprays in commercial high-arched plastic tunnels common in many countries. The evaluation occurred during two cucumber and pepper cropping seasons: spring and fall. At each site, two commercial tunnels were used; farmers’ conventional practices were applied in one tunnel, while the BIPM approach was followed in the second tunnel. In the farmers’ practices, a total of 14 sprays of insecticide/acaricide mixtures were applied during the spring growing season, and 6 …

Imitating The “Breeder’S Eye”: Predicting Grain Yield From Measurements Of Non-Yield Traits, Hongyu Jin, Michael C. Tross, Ruijuan Tan, Linsey Newton, Ravi V. Mural, Jinliang Yang, Addie M. Thompson, James C. Schnable

Department of Agronomy and Horticulture: Faculty Publications

Plant breeding relies on information gathered from field trials to select promising new crop varieties for release to farmers and to develop genomic prediction models that can enhance the efficiency of genetic improvement in future breeding cycles. However, generating the genetic marker data required to apply genomic prediction at the early stages of a breeding program remains costly for many public-sector breeding programs as well as for many plant breeders operating in developing countries. As the pace of climate change intensifies, the time lag of developing and deploying new crop varieties requires plant breeders to make selection decisions without knowing …

Photodegradation Stability Of Huminated European Pine (Pinus Sylvestris L.) Microveneers, Reza Hosseinpourpia, Amir Ghavidel

Michigan Tech Publications

Humins are heterogeneous and polydisperse furanic macromolecules derived from sugar biorefinery. Improving wood properties by humination has become of interest recently. This study examined the photodegradation stability of European pine sapwood microveneers modified with humins at different concentrations of citric acid (CA) and succinic acid (SA) as reaction catalysts, e.g., 1.5 %, 3 %, and 4.5 % wt.%. The photostability of huminated wood was assessed after 48 h, 96 h, and 144 h of exposure to the accelerated weathering test by means of mass loss and finite-span tensile strength. The results were compared with unmodified and also unweathered samples. The …

Testing The Reliability Of Optical Coherence Tomography To Measure Epidermal Thickness And Distinguish Volar And Nonvolar Skin, Molly E. Baumann, Nina Rossa Haddad, Alyssa Salazar, W. Lee Childers, Shawn Farrokhi, Neil B. Goldstein, Brad D. Henderson, Lisa Reider, Richard E. Thompson, Michael S. Valerio, Christopher L. Dearth, Luis A. Garza, Major Extremity Trauma Research Consortium (Metrc)

Physical Therapy Faculty Articles and Research

In persons with limb loss, prosthetic devices cause skin breakdown, largely because residual limb skin (nonvolar) is not intended to bear weight such as palmoplantar (volar) skin. Before evaluation of treatment efficacy to improve skin resiliency, efforts are needed to establish normative data and assess outcome metric reliability. The purpose of this study was to use optical coherence tomography to (i) characterize volar and nonvolar skin epidermal thickness and (ii) examine the reliability of optical coherence tomography. Four orientations of optical coherence tomography images were collected on 33 volunteers (6 with limb loss) at 2 time points, and the epidermis …